KR102496748B1 - Air blowing device for traditional iron making process - Google Patents

Abstract

The present invention relates to a blower for a traditional iron-making process, which includes a bellows for pressurizing air and blowing the same to a steel-making furnace; a bellows driving device installed on top of the bellows and operating the bellows using a rotational force of a motor; and a control part for controlling operation of the motor of the bellows driving device. By driving the bellows with the motor, a constant blowing pattern can be maintained or a blowing pattern can be adjusted as intended so that the present invention can be very useful for restoration experiments of traditional steelmaking techniques, eliminate the difficulty of securing manpower to operate the bellows, and reduce labor costs.

Description

Blowing device for traditional steel manufacturing process {AIR BLOWING DEVICE FOR TRADITIONAL IRON MAKING PROCESS}

The present invention relates to a blower for a traditional iron-making process, and more particularly, to a blower for a traditional iron-making process used to supply air to a steel-making furnace during an experiment to restore iron-making technology using a traditional iron-making furnace.

The Iron Age of Korea is the period from approximately 300 BC to 300 AD, and is the period from the late Gojoseon to the ancient states of Goguryeo, Baekje, and Silla. During this period, iron production was an important issue directly related to national power, so each country made great efforts to produce high-quality iron.

However, it is difficult to confirm the original form of ancient iron-making ruins due to the structure and operation characteristics, and there is a limit to grasping information on traditional iron-making technology only with archaeological excavation results. Therefore, systematic experimental archaeological data accumulation and advanced analytical research are required in order to restore traditional iron-making techniques and prepare standards for traditional iron-manufacturing.

Accordingly, restoration research projects at the national or regional level are continuing to more accurately restore the ancient high-level iron-making technology.

In this regard, as a prior art related to an experimental method for restoring ancient steel furnace technology, Korean Patent Registration No. 10-2006432 (Announced on August 5, 2019) (Patent Document 1) has been disclosed.

On the other hand, the conventional method for restoring traditional iron manufacturing technology including Patent Document 1 uses a traditional bellows as a blowing device for injecting air into the steel furnace. Bellows are divided into hand bellows and foot bellows depending on the operation method, and foot bellows are mainly used in large steel furnaces.

Such a blowing method by bellows has a problem that is not suitable for the restoration experiment of ancient steelmaking technology because there is a difference in the process and the quality of the produced iron depending on the mutual breathing and skill of the manipulators who operate the bellows.

In addition, in repeating the restoration experiment multiple times, there was a problem that it was not easy to secure manpower smoothly whenever necessary and the labor cost increased significantly, and this problem was further aggravated by the corona pandemic. .

The prior art is technical information that the inventor possessed for derivation of the present invention or acquired during the derivation process of the present invention, and may not necessarily be known art disclosed to the general public prior to filing the present invention.

Republic of Korea Patent Registration No. 10-2006432 (2019.08.05. Notice)

In solving the above problems, an object of the present invention is to be able to always reproduce a constant pattern of blowing patterns regardless of the skill level of manpower operating the bellows, and also to easily change the blowing pattern to suit the experimental intention, if necessary. The object of the present invention is to provide a blower device for traditional iron-making processes that is more suitable and useful for restoration experiments of ancient iron-making techniques.

In addition, another object of the present invention is to provide a blower device for traditional steelmaking processes that can solve the difficulty of securing bellows operating manpower for each repeated experiment and can reduce labor costs consumed for manpower use.

The problem to be solved by the present invention is not limited to those mentioned above, and other problems to be solved that are not mentioned can be clearly understood by a person having ordinary skill in the art to which the present invention belongs from the following description. There will be.

Blowing device for traditional steel manufacturing process according to an embodiment of the present invention, a bellows for pressurizing air and blowing it to a steel furnace, a bellows driving device installed on top of the bellows to operate the bellows, and controlling the operation of the bellows driving device It includes a control unit that

The bellows driving device connects a frame having both ends fixed to the installation plate mounted on both upper ends of the bellows, a motor installed on the frame, a wheel installed on the output shaft of the motor, and a wheel and a pressing member of the bellows, so that the ends of the pressing member are connected. It includes a connecting rod that operates in the vertical direction.

The connecting rod includes an upper rod having an upper end rotatably connected to one side surface of the wheel, and a lower rod having both ends rotatably connected to a lower end of the upper rod and the pressing member.

The lower rod passes through a guide member installed in the frame and guides an operating path in a vertical up and down direction.

A connecting plate integrally equipped with a pair of bearings is mounted on an upper surface of a reinforcing member disposed at both ends of the pressing member, and a lower end of the lower rod is connected to the bearing through a hinge shaft.

A cover covering the connection between the lower rod and the bearing from the outside is installed on the connecting plate, and the lower rod is connected to the bearing through a through hole formed in the cover.

The motor is a synchronous geared motor, an output shaft protrudes from both sides of the gearbox, the wheels are installed at both ends of the output shaft, and both wheels are connected to the pressing member of the bellows by respective connecting rods.

The control unit is an inverter device installed between a motor and a power source for supplying power to the motor, and can adjust the rotational speed of the motor by adjusting the frequency of the voltage supplied to the motor.

The bellows includes a rectangular parallelepiped box-shaped enclosure, a partition wall member installed vertically in the center of the enclosure to divide the internal space of the enclosure into a left space and a right space, and a pressing member installed to enable seesaw movement at the upper end of the partition wall member, , Each intake port and exhaust port of the left space and the right space of the enclosure formed on the rear wall and the front wall of the enclosure.

The upper end of the partition wall member is formed in a semicircular shape convex upward, a semicircular seating groove concave upward is formed on the lower surface of the pressing member, and the upper end of the partition wall member is inserted and seated in the seating groove of the pressing member. A pressing member is installed at the upper end.

An exhaust pipe may be installed through the center of the front wall of the enclosure, and a rear end of the exhaust pipe may be partitioned by the partition wall member to form exhaust ports in the left space and the right space.

An auxiliary enclosure forming an airtight space including the exhaust ports may be formed on a front wall of the enclosure, and an exhaust pipe may be installed through the front of the auxiliary enclosure.

When the pressure in the inner space of the enclosure rises on the inner surface of the rear wall of the enclosure, the opening/closing members rotate toward the rear wall to block the intake ports, and when the pressure in the inner space of the enclosure decreases, the opening and closing members rotate toward the inner space of the enclosure to open the intake ports. installed

On the outer surface of the front wall of the enclosure, when the pressure in the inner space of the enclosure increases, it rotates toward the auxiliary enclosure to open the exhaust ports, and when the pressure in the inner space of the enclosure decreases, it rotates toward the front wall to block the exhaust ports. Opening and closing members are installed.

As described above, the blower device for the traditional iron-making process according to the present invention has the effect of always being able to reproduce a constant blowing pattern regardless of the skill level of the manpower operating the bellows by operating the bellows using the rotational force of the motor.

In addition, by controlling the operation of the motor by the controller, the blowing pattern can be easily changed according to the purpose of the experiment.

In addition, since the operation of the bellows does not depend on manpower, the difficulty of securing manpower to operate the bellows for each repeated experiment is eliminated, and there is an effect of reducing labor costs.

The effects of the present invention are not limited to those mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the following description.

1 is a perspective view of a blower for a traditional iron-making process according to the present invention.
FIG. 2 is a view showing a front view from the rear by cutting the motor installation location in the longitudinal direction in FIG. 1 .
3 is a view showing a state viewed from the front to the rear by cutting the motor installation position in the longitudinal direction in FIG. 1;
FIG. 4 is an enlarged view of the support portion of the pressing member in FIG. 3 .
5 is an enlarged perspective view of a main part of a bellows driving device, which is one component of the present invention.
6 and 7 are operational state diagrams showing a first embodiment of a bellows, which is a component of the present invention, in which FIG. 6 is a left spatial compression state and FIG. 7 is a right spatial compression state.
8 and 9 are operational state diagrams showing a second embodiment of a bellows, which is a component of the present invention, in which FIG. 8 is a left spatial compression state and FIG. 9 is a right spatial compression state.

In the present invention, the accompanying drawings in the present invention may be shown in an exaggerated expression for distinction and clarity from the prior art, and convenience of understanding the technology. In addition, the terms to be described later are terms defined in consideration of functions in the present invention, and may vary according to the intention or custom of the user or operator, so the definitions of these terms should be made based on the technical content throughout this specification. will be. On the other hand, the embodiments are only exemplary of the components presented in the claims of the present invention, do not limit the scope of the present invention, and the scope of rights should be interpreted based on the technical spirit throughout the specification of the present invention. .

Throughout the specification, when a certain component is said to "include" a certain component, it means that other components may be further included without excluding other components unless otherwise specified.

In addition, when a component is said to be "connected", "connected" or "coupled" to another component, it is not only 'directly connected', 'directly connected' or 'directly coupled', but also 'the It means that there may be a case of 'connection through another structure in the middle', 'connection through another structure in the middle', or 'combined through another structure in the middle'. On the other hand, when a component is said to be “directly connected”, “directly connected”, or “directly coupled” to another component, it should be understood that no other component exists in the middle.

In addition, when directional terms such as "front", "back", "upper", "lower", "left", "right", "one end", "the other end", "both ends", etc. are used, they refer to the disclosed drawings. Since it is used as an example in relation to the orientation of the elements, it should not be construed as being limited, and when terms such as "first" and "second" are used, they are terms for distinguishing each configuration and should not be construed as restrictive. .

In order to more clearly describe the characteristics of the embodiments of the present invention, detailed descriptions of matters widely known to those skilled in the art to which the following embodiments belong will be omitted. In addition, detailed descriptions of parts not related to the description of the embodiment in the drawings will be omitted.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view of a blower for a traditional steel manufacturing process according to the present invention, FIG. 2 is a view showing a front view from the rear by cutting the motor installation position in the longitudinal direction in FIG. 1, and FIG. It is a view showing the rear view from the front by cutting the motor installation position in the longitudinal direction, Figure 4 is an enlarged view of the support of the pressing member in Figure 3, Figure 5 is a bellows driving device of one component of the present invention It is an enlarged perspective view of the main part of

Referring to Figures 1 to 5, the blower device for the traditional iron-making process according to an embodiment of the present invention, a bellows 100 for pressurizing air and blowing it to a steel-making furnace, and a bellows driving device for operating the bellows 100 200 and a controller 300 for controlling the operation of the bellows driving device 200. Here, 'steel furnace' is a term that collectively refers to smelting furnaces, smelting furnaces, and melting furnaces used for smelting, forging, and melting, which are detailed processes of traditional steelmaking technology.

The bellows 100 has a rectangular parallelepiped box shape as a whole. More specifically, the bellows 100 includes a enclosure 110 forming a space isolated from the outside, a partition wall member 120 dividing the internal space of the enclosure 110 into a left space and a right space, and the partition wall A pressure member 130 installed at the top of the member 120 to enable seesaw motion, and intake ports 141 and 142 and exhaust ports 143 and 144 respectively formed on the rear wall and the front wall of the housing 110. It includes.

The enclosure 110 is composed of a rectangular bottom plate and four side walls that are installed upright on the front, rear, left, and right ends of the bottom plate and connected to each other, and the top is open. This open top is blocked by a pressing member 130 to be described later.

The partition wall member 120 is vertically installed in the inner center of the enclosure 110 to equally divide the internal space of the enclosure 110 into a left space and a right space. The bulkhead member 120 is fixed to the bottom plate, the front side wall, and the rear side wall of the enclosure 110.

The pressing member 130 is a rectangular plate member having an area slightly smaller than the flat cross-sectional area of the inner space of the housing 110. In order to reinforce overall structural rigidity, a reinforcing member 131 is installed on the upper surface.

The reinforcing member 131 is a plurality of straight timbers arranged in the transverse and longitudinal directions, and the reinforcing members 131 in the transverse and longitudinal directions are installed in a structure orthogonal to each other to form a lattice structure, thereby forming a simple flat plate pressing member The rigidity of (130) is sufficiently reinforced to the extent necessary.

A gap (G) of a predetermined distance exists between the pressure member 130 and the inner wall surface of the enclosure 110 so that the seesaw motion of the pressure member 130 can be made smoothly.

However, when the air leaks through the gap G and the compression efficiency by the pressing member 130 is excessively lowered, it is impossible to sufficiently secure the airflow amount, so cotton, cloth, leather, etc. A sealing member (not shown) made of a material may be installed. The sealing member installed in this way improves compression efficiency by the pressing member 130 by blocking the gap G without interfering with the operation of the pressing member 130 .

In addition, the upper end 120a of the barrier rib member 120 is formed in a semicircular shape convex upward when viewed from the front. Correspondingly, a semicircular seating groove 130a concave upward in the front-rear direction is formed at the center of the lower surface of the pressing member 130 . Therefore, the pressure member 130 is installed in the partition member 120 in a structure in which the upper end 120a of the partition member 120 is inserted into the seating groove 130a, and at this time, the upper end 120a and the seating groove 130a ) The seesaw movement of the pressing member 130 can be made more smoothly by the curved shape.

The intake ports 141 and 142 are formed on the rear wall of the enclosure 110 . The intake ports 141 and 142 are formed one by one in the left space and the right space of the housing 110 based on the partition wall member 120 . Among them, the inlet in the left space will be referred to as the first inlet 141, and the inlet in the right space will be referred to as the second inlet 142.

In addition, the exhaust ports 143 and 144 are formed on the front wall of the housing 110. Exhaust ports 143 and 144 are formed one by one in the left space and the right space of the housing 110 based on the partition wall member 120 . Among them, the exhaust port in the left space will be referred to as the first exhaust port 143, and the exhaust port in the right space will be referred to as the second exhaust port 144. is done).

On the other hand, in the center of the front wall of the enclosure 110, an exhaust pipe 150, which is a circular pipe, is installed to connect the bellows 100 and the blast pipe connecting the steel furnace. At this time, the rear end of the exhaust pipe 150 (the end on the side of the housing 110) is in close contact with the partition wall member 120 or a front part of the partition wall member 120 is inserted into the rear end of the exhaust pipe 150 so that the exhaust pipe 150 The rear end, that is, the entrance may be partitioned into both left and right sides (see FIG. 6).

In this case, the first exhaust port 143 and the second exhaust port 144 refer to the left and right parts of the rear end of the exhaust pipe 150 . That is, at the inlet of the exhaust pipe 150, the first exhaust port 143 refers to the left side of the partition wall member 120, and the second exhaust port 144 refers to the right side of the partition wall member 120.

On the other hand, in FIGS. 1 and 2, the plates around the exhaust pipe 150 are support members that support the exhaust pipe 150 so that the installation state in which the exhaust pipe 150 penetrates the front wall of the enclosure 110 can be stably maintained ( 160) are

In addition, opening/closing members 171 , 172 , 173 , and 174 may be provided at the intake ports 141 and 142 and the exhaust ports 143 and 144 , respectively. Specific operations of these opening and closing members 171 , 172 , 173 , and 174 will be described later.

The bellows driving device 200 is installed on top of the bellows 100. To this end, an installation plate 180 for supporting the bellows driving device 200 is installed at the top of both left and right side walls of the enclosure 110.

The bellows driving device 200 is installed on a frame 210 having both ends fixed to the mounting plate 180 on both sides, a motor 220 installed on the frame 210, and an output shaft 230 of the motor 220. It includes a wheel 240 and a connecting rod connecting the wheel 240 and the pressing member 130 of the bellows 100 to operate the end of the pressing member 130 in the vertical direction. At this time, the connecting rod consists of an upper rod 250 and a lower rod 260 rotatably connected to each other in order to convert the rotational motion of the wheel 240 into a linear motion and transmit the converted motion to the pressing member 130 .

The frame 210 is made of straight angles made of metal to ensure structural rigidity. In addition, it is advantageous that it is lightweight because it must be installed and operated on the top of the bellows 100. Therefore, it is preferable to use, for example, a square tube or profile made of aluminum.

The frame 210 has a double structure of a front frame and a rear frame having the same structure. In each of the front frame and the rear frame, the upper horizontal member 211 and the lower horizontal member 212 are spaced apart at a predetermined interval in the vertical direction, and both ends are connected to the vertical members 213 on both sides, and the vertical member 213 Is made of a structure mounted on the base member 214 disposed in the front-rear direction of the bellows 100.

A first connecting member 215 in the vertical direction is installed at an intermediate portion between the upper horizontal member 211 and the lower horizontal member 212 to reinforce strength.

The base member 214 is firmly fixed to the installation plate 180 of the bellows 100.

In addition, a plurality of second connecting members 216 are connected between the front frame and the rear frame so that the rigidity of the entire frame 210 can be reinforced.

The motor 220 is installed on both sides of the upper horizontal member 211 (more precisely, it is mounted on the upper surface of the second connecting member 216 connecting the upper horizontal member 211 of the front frame and the rear frame). . The motor 220 is a geared motor integrally equipped with a reduction gearbox, and the output shaft 230 protrudes in both directions of the gearbox (ie, in the forward and backward directions of the bellows 100).

In addition, the motor 220 is a synchronous motor, and when the frequency of supply power is constant, the rotational speed is maintained constant and has excellent efficiency at low speed. Therefore, it is easy to manipulate the driving speed by adjusting the frequency of the supply power, so it is suitable for use as a drive motor of the bellows 100 operated at a constant speed in a low speed state, and the operation pattern of the bellows 100 by adjusting the rotation speed By adjusting, it is easy to adjust the blowing pattern as intended.

Wheels 240 are installed at both ends of the output shaft 230, respectively. The upper end of the upper rod 250 is rotatably connected to one side of the wheel 240 via the hinge shaft S1, and the lower rod 260 to the lower end of the upper rod 250 via the hinge shaft S2. ) is rotatably connected.

The lower rod 260 is installed in a structure penetrating the guide member 270 mounted on the lower horizontal member 212 so that it can be operated accurately in the vertical direction.

The lower end of the lower rod 260 is rotatably connected to both ends of the pressing member 130 . On the upper surface of the reinforcing member 131 located at both ends of the pressing member 130, a connection plate 280 made of metal is fixedly mounted.

A pair of bearings 281 are fixedly installed on the connection plate 280, and a hinge shaft S3 penetrating the lower end of the lower rod 260 is inserted into the inner ring of the bearing 281.

A cover 282 may be installed on the connection plate 280 to cover a connection portion between the lower rod 260 and the bearing 281 from the outside. The cover 282 has a step (height difference) on both sides of the upper plate, and the lower plates are connected to each other, and both lower plates are fixed to the upper surface of the connecting plate 280. At this time, the cover 282 may be mounted on the connecting plate 280 by using bolts for fixing the connecting plate 280 to the reinforcing member 131 of the movable member 130 together.

In addition, a through hole 282a is formed in the upper plate of the cover 282 to allow the lower rod 260 to pass therethrough. As such, since the cover 282 is provided, the bearing 281 can be protected from an impact caused by an external object, and the appearance of the connection portion between the lower rod 260 and the pressing member 130 can be clearly seen.

The operation of the bellows driving device 200 is as follows.

When the motor 220 is operated, the wheel 240 is rotated, and the lower rod 260 is operated in the up and down direction via the upper rod 250. Therefore, the pressing member 130 connected to the lower rod 260 ) is operated up and down. As shown in FIG. 1, the motor 220, the wheel 240, the upper rod 250, and the lower rod 260 as described above are equally installed at both ends of the pressing member 130, and at this time, the motors 220 on both sides The rotational speed is the same, and when assembling the device, the ascending and descending directions of the lower rods 260 on both sides are set to be opposite to each other. Therefore, the seesaw motion of the pressing member 130 can be made smoothly.

The controller 300 is installed between the power source 400 and the motor 220. The control unit 300 is an inverter device that varies the frequency of power supplied to the motor 220, that is, the frequency of the supply voltage, and includes a control lever for variable control of the frequency. Therefore, the driver of the blower device (the person performing the experiment) can adjust the rotational speed of the motor 220 by manipulating the control lever of the control unit 300 to adjust the frequency of the input voltage.

Since the operating speed of the bellows 100 changes according to the rotational speed of the motor 220, the blowing pattern through which air is supplied to the steel furnace can be variously changed by operating the control unit 300.

As described above, when the bellows 100 is operated by the bellows driving device 200, air is discharged to the exhaust pipe 150 of the bellows 100, and the discharged air is supplied to the steel furnace through the blowing pipe connected to the exhaust pipe 150. It is used for combustion of charcoal (char) and reduction of iron ore.

6 and 7 are a first embodiment of the bellows 100, which is one component of the present invention, and FIG. 6 is a left space compression state, FIG. 7 is an operating state diagram showing a right space compression state. In this embodiment, the first intake port 141 and the second intake port 142 are formed on the rear wall of the housing 110, and the first exhaust port 143 and the second exhaust port 144 are formed at the rear end of the exhaust pipe 150. This is an embodiment formed by partitioning left and right by the partition wall member 120.

Opening and closing members 171 and 172 for opening and closing each of the first inlet 141 and the second inlet 142 are installed. The opening and closing members 171 and 172 are made of a light and flexible material such as leather, and are installed on the inner surface of the rear wall of the housing 110 to operate according to the pressure inside the housing 110. The opening and closing members 171 and 172 are rotated toward the rear wall when the internal pressure of the enclosure 110 increases to block the first intake port 141 and the second intake port 142, and the internal pressure of the enclosure 110 decreases. When the housing 110 is rotated toward the inner space, the first inlet 141 and the second inlet 142 are opened.

As shown in FIG. 6, when the left end of the pressing member 130 descends, the left space of the enclosure 110 is compressed so that the first opening/closing member 171 is rotated toward the rear wall and the first intake port 141 opens. At this time, the pressure member 130 rises in the right space of the enclosure 110 and the pressure decreases, so that the second opening/closing member 172 is rotated toward the inner space and the second intake port 142 is opened.

Accordingly, air in the left space of the enclosure 110 is discharged through the first exhaust port 143 and the exhaust pipe 150, and outside air is introduced into the right space through the second intake port 142. At this time, the pressure in the left space greatly rises due to the descent of the pressing member 130, and the air in the left space escapes to the exhaust pipe 150 at a very high speed. Therefore, the pressure inside the exhaust pipe 150 is low, so the exhaust pipe from the left space 150) does not flow backward to the right space through the second exhaust port 144.

Conversely, when the right end of the pressing member 130 descends as shown in FIG. 7, the first opening and closing member 171 is opened by the opposite action to that of FIG. 6, and the left space of the housing 110 is filled with air, When the second opening/closing member 172 is closed, the air in the right space is discharged through the second exhaust port 144 and the exhaust pipe 150 .

8 and 9 are operational state diagrams showing a second embodiment of a bellows, which is a component of the present invention, in which FIG. 8 is a left spatial compression state and FIG. 9 is a right spatial compression state. In this embodiment, the first intake port 141 and the second intake port 142 are formed in the same manner as in the first embodiment, and the first exhaust port 143 and the second exhaust port 144 are formed on the front wall of the enclosure 110. Is formed on the left and right sides of the bulkhead member 120, respectively, and the auxiliary enclosure 190 is formed in front of the exhaust ports 143 and 144 to form another closed space distinct from the internal space of the enclosure 110, the auxiliary enclosure ( 190) has a structure in which the exhaust pipe 150 is installed through.

The exhaust ports 143 and 144 are provided with a third opening and closing member 173 and a fourth opening and closing member 174, respectively. These third opening and closing members 173 and fourth opening and closing members 174 are installed on the outer surface of the front wall and are rotated toward the auxiliary enclosure 190 when the pressure in the inner space of the enclosure 110 rises, thereby opening the corresponding exhaust ports 143 and 144. is opened and when the pressure in the inner space decreases, it rotates toward the front wall of the housing 110 and operates in such a way as to block the corresponding exhaust ports 143 and 144.

As shown in FIG. 8, when the left end of the pressing member 130 descends and the right end rises, air is compressed in the left space of the enclosure 110, and the first opening/closing member 171 closes and the third opening/closing member 171 closes. (173) is open. Therefore, the air in the left space is discharged through the first exhaust port 143 and the exhaust pipe 150, and the second opening and closing member 172 is opened while the pressure is reduced in the right space of the enclosure 110, and the fourth opening and closing member 174 is closed Therefore, outside air flows into the right space through the second intake port 142, and at this time, the second exhaust port 144 is blocked by the fourth opening and closing member 174, so that the air in the right space escapes through the second exhaust port 144. This is reliably prevented, and the air filling of the right space is more smoothly performed. In addition, since the air discharged from the left space is reliably blocked from flowing back into the right space, the air discharge efficiency of the left space is improved.

Conversely, as shown in FIG. 9, when the left end of the pressing member 130 rises and the right end descends, the first opening/closing member 171 opens while the pressure decreases in the left space of the enclosure 110, and the third opening/closing member 173 ) is closed, and the pressure in the right space is increased by compression, so that the second opening and closing member 172 closes and the fourth opening and closing member 174 opens.

Therefore, outside air is introduced into the left space through the first intake port 141, and air in the right space is discharged through the second exhaust port 144 and the exhaust pipe 150.

At this time, since the first exhaust port 143 is blocked by the third opening/closing member 173, the air in the left space is prevented from escaping through the first exhaust port 143, so that the air in the left space is more smoothly filled. In addition, since the air discharged from the right space is reliably blocked from flowing backward into the left space, the air discharge efficiency of the right space is improved.

As described above, the blowing device for the traditional steelmaking process according to the present invention operates the bellows using a motor, so that a constant blowing pattern can always be reproduced regardless of the skill level of the manpower operating the bellows, and the control unit operates the motor. By controlling the blowing pattern can be easily changed according to the purpose of the experiment, there is a more useful effect in the restoration experiment of traditional iron manufacturing technology.

In addition, since bellows manipulators are not required for the same reason, there is no need to secure bellows manipulators every time an experiment is conducted, and thus there is an effect of reducing labor costs.

As described above, the present invention has been described with reference to the embodiments shown in the drawings, but this is only exemplary, and various modifications and equivalent other embodiments are possible based on common knowledge in the field to which the technology belongs. should understand Therefore, the true technical protection scope of the present invention is based on the claims to be described below, and should be determined based on the specific contents of the above-described invention.

The present invention relates to a blower for a traditional iron-making process, and can be used in industrial fields related to traditional iron-making technology.

100: bellows 110: enclosure
120: bulkhead member 130: pressing member
131: reinforcing member 141: first inlet
142: second intake port 143: first exhaust port
144: second exhaust port 150: exhaust pipe
160: support member 171: first opening and closing member
172: second opening and closing member 173: third opening and closing member
174: fourth opening and closing member 180: installation plate
190: auxiliary enclosure
200: bellows driving device 210: frame
211: upper horizontal member 212: lower horizontal member
213: vertical member 214: base member
215,216: connecting member 220: motor
230: output shaft 240: wheel
250: upper rod 260: lower rod
270: guide member 280: connecting plate
281: bearing 282: cover
G: gap S1,S2,S3: hinge shaft

Claims (14)

Bellows for pressurizing air and blowing it to the steel furnace;
a bellows driving device installed on top of the bellows to operate the bellows;
A controller for controlling the operation of the bellows driving device;
including,
The bellows driving device connects a frame having both ends fixed to the installation plate mounted on both upper ends of the bellows, a motor installed on the frame, a wheel installed on the output shaft of the motor, and a wheel and a pressing member of the bellows, so that the ends of the pressing member are connected. Includes a connecting rod that operates in the vertical direction,
The motor is a synchronous geared motor, an output shaft protrudes from both sides of the gearbox, the wheels are installed at both ends of the output shaft, and both wheels are connected to the pressing member of the bellows by respective connecting rods,
The control unit is an inverter device installed between a motor and a power source for supplying power to the motor, and the blower for traditional steelmaking processes, characterized in that to adjust the rotational speed of the motor by adjusting the frequency of the voltage supplied to the motor Device. delete The method of claim 1,
The connecting rod is a blower device for traditional steelmaking process, characterized in that it comprises an upper rod rotatably connected to one side of the wheel, and a lower rod rotatably connected to both ends of the lower end of the upper rod and the pressing member. The method of claim 3,
The lower rod is a blower device for traditional steelmaking processes, characterized in that the operating path is guided in the vertical vertical direction through the guide member installed in the frame. The method of claim 3,
A connecting plate integrally equipped with a pair of bearings is mounted on the upper surface of the reinforcing member disposed at both ends of the pressing member, and the lower end of the lower rod is connected to the bearing via a hinge shaft. Traditional steelmaking process blower device. The method of claim 5,
A blower for a traditional steelmaking process, characterized in that a cover for covering the connection between the lower rod and the bearing from the outside is installed on the connecting plate, and the lower rod is connected to the bearing through a through hole formed in the cover. delete delete The method of claim 1,
The bellows includes a rectangular parallelepiped box-shaped enclosure, a partition wall member installed vertically in the center of the enclosure to divide the internal space of the enclosure into a left space and a right space, and a pressing member installed to enable seesaw movement at the upper end of the partition wall member, , Blower device for traditional steelmaking process including each inlet and outlet of the left space and the right space of the box formed on the rear wall and the front wall of the box. The method of claim 9,
The upper end of the partition wall member is formed in a semicircular shape convex upward, a semicircular seating groove concave upward is formed on the lower surface of the pressing member, and the upper end of the partition wall member is inserted and seated in the seating groove of the pressing member. Blower device for traditional steelmaking process, characterized in that the pressing member is installed at the upper end. The method of claim 9,
An exhaust pipe is installed through the center of the front wall of the enclosure, and the rear end of the exhaust pipe is partitioned by the partition wall member to form exhaust ports in the left space and the right space. The method of claim 9,
An auxiliary enclosure for forming an airtight space including the exhaust vents is formed on the front wall of the enclosure, and an exhaust pipe is installed through the front of the auxiliary enclosure. The method of claim 9,
When the pressure in the inner space of the enclosure rises on the inner surface of the rear wall of the enclosure, the opening and closing members rotate toward the rear wall to block the intake ports, and when the pressure in the inner space of the enclosure decreases, the opening and closing members rotate toward the inner space of the enclosure to open the intake ports. Blower device for traditional steelmaking process, characterized in that installed. The method of claim 12,
When the pressure in the inner space of the enclosure rises, opening and closing members are installed on the outer surface of the front wall of the enclosure to open the exhaust ports by rotating toward the auxiliary enclosure, and to block the exhaust ports by rotating toward the front wall when the pressure in the inner space of the enclosure decreases. Blower device for traditional steel making process.

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